两个变量X和Y,当X•Y=45时,X和Y是请选择CBA0N0S0h*A1X9Y/d5h)@1v9~8j6S6^'c2{5v3`2z/q(\
A、成正比例量1v9~8j6S6^'c2{5v3`2z/q(\
B、成反比例量1v9~8j6S6^'c2{5v3`2z/q(\
C、不成比例量1v9~8j6S6^'c2{5v3`2z/q(\